json_env

json_env is dotenv, but with JSON. json_env loads an environment variables from a file called .env.json in the current directory and starts a subprocess with them. Storing configuration in the environment separate from code is based on The Twelve-Factor App methodology.

.env.json:

{
    "NODE_ENV": "DEV",
    "MY_USER": "Carl",
    "NUM_USERS": 10,
    "nested": {
        "hello": "world",
        "boo": "far"
    }
}

Shell:

$ json_env env

MY_USER=Carl
NODE_ENV=DEV
NUM_USERS=10
nested={"boo":"far","hello":"world"}
[...]

Additional command line arguments that are passed to json_env are forwarded to the child process:

Shell:

$ json_env echo "Test"

Test